Title :
Analysis and Improvement of a Secure Proxy Signature Scheme
Author :
Hu, Xiaoming ; Xu, Huajie ; Xiong, Xiaohua
Author_Institution :
Sch. of Comput. & Inf., Shanghai Second Polytech. Univ., Shanghai, China
Abstract :
Recently, Hu-Bin and Jin Chenhui proposed anew strong proxy signature scheme based on elliptic curve crypto system. They claimed that it is secure and efficient. However, this paper shows that the proposed scheme is not correct and there are several mistakes in their scheme. As an improvement, this paper presents a novel strong proxy signature scheme which corrects the weakness of Hu-Bin and Jin Chenhui´s scheme. The improved scheme also possesses all security properties for a strong proxy signature scheme.Compared with Hu-Bin and Jin Chenhui´s scheme and other systems, the improved scheme needs much less computation overhead and communication cost. It can be applied to electronics commerce and mobile agent environment.
Keywords :
cryptography; Hu-Bin scheme; Jin Chenhui scheme; electronics commerce; elliptic curve crypto system; mobile agent environment; secure proxy signature scheme analysis; secure proxy signature scheme improvement; Computer network management; Computer networks; Conference management; Costs; Elliptic curve cryptography; Information analysis; Information management; Mobile agents; Security; Technology management; cryptanalysis; elliptic curve cryptosystem; proxy signature; security;
Conference_Titel :
Future Networks, 2010. ICFN '10. Second International Conference on
Conference_Location :
Sanya, Hainan
Print_ISBN :
978-0-7695-3940-9
Electronic_ISBN :
978-1-4244-5667-3
DOI :
10.1109/ICFN.2010.64
